*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
a{
    text-decoration: none;
    color: #fff;
}
ul{
    list-style: none;
}
.clearfix::after{
    content: "";
    display: block;
    clear: both;
}


nav{
    width: 100%;
    height: 862.6px;
    background-color: rgba(0, 0, 0, 0.4);
    background-image: url(../img/1.jpg);
    background-repeat: no-repeat;
    background-size: cover;
    background-attachment: fixed;
    transition: all 4s;
    position: relative;
}
nav .covers{
    background-color: rgba(0, 0, 0, .6);
    height: 862.6px;
}
nav.active{
    opacity: 1;
}

nav .title.active{
    background-color: #fff;
}

nav .title{
    width: 100%;
    height: 90px;
    padding: 30px 0;
    position: fixed;
    top: 0;
    z-index: 1;
}
nav .title .logo{
    float: left;
    padding-left: 196px;
    margin-top: -15px;
}
nav .title .logo span{
    font-weight: bold;
}
nav .title .logo span:nth-child(1){
    font-size: 25px;
}
nav .title ul{
    float: right;
    padding-right: 148px;
}
nav .title ul li{
    float: left;
    margin-right: 20px; 
    font-weight: bold;   
}
nav .title ul li a{
    padding: 5px;
}
nav .title ul li:first-child a{
    border-top: 1px solid #fff;
    border-bottom: 1px solid #fff;
}
nav .title ul li a.active{
    border-top: 1px solid #000;
    border-bottom: 1px solid #000;
    color: #000;
}
nav .title ul li a.actives{
    border-top: 1px solid #fff;
    border-bottom: 1px solid #fff;
    color: #fff;
}




nav .intro{  
    width: 750px;
    position: absolute;
    top: 298px;
    left: 395px;
    text-align: center;
}
nav .intro p{
    text-align: center;
    color: #fff;
}
nav .intro p:first-child{
    font-size: 36px;
}
nav .intro span{
    display: inline-block;
    width: 105px;
    height: 0;  
    border-bottom: 2px solid #fff;
    margin: 26px 0;
}

.welcome{
    padding: 80px 0;
}
.nav .box{
    width: 1170px;
    margin: 0 auto;
    text-align: center;
}

.nav .box h2{
    padding: 20px 0;
}
.nav .box p{
    padding-top: 40px;
}
.nav .box h2,.nav .box div{
    text-transform: uppercase;
}
.nav .box p span{
    font-size: 13px;
    line-height: 22px;
    color: #333;
}
.nav .box>span{
    display: inline-block;
    width: 100px;
    height: 0;
    border: 1px solid #666;
}  
.nav .box div{
    width: 178px;
    height: 45px;
    margin: 0 auto;
    margin-top: 50px;
    line-height: 21px;
    border: 2px solid #000;
    padding: 10px 20px;
    font-weight: bold;
}
.nav .box div:hover{
    cursor: pointer;
    opacity: .6;
}
.cover{
    width: 100%;
    height: 546px;
    background-image: url(../img/4.jpg);
    background-repeat: no-repeat;
    background-size: cover;
    background-attachment: fixed;
    color: #fff;
    text-align: center;  
}
.cover .covers{
    background-color: rgba(0,0,0,.6);
    padding: 80px 0;
}
.cover h2{
    padding: 80px 0;
}
.cover .box{
    height: 194px;
}
.cover dl{
    float: left;
    padding: 0 15px 0 20px;  
}
.cover dl span{
    display: inline-block;
    width: 65px;
    height: 0;
    border: 1px solid #989898;
    margin: 30px 0;
}
.cover dl dt{
    font-size: 18px;
    font-weight: bold;
}
.cover dl dd{
    font-size: 13px;
}

.team .box p span:nth-child(2){
    font-size: 16px;
}
.team{
    text-align: center;
    padding: 80px 0;
}
.team ul{
    width: calc(292px * 4);
    margin: 100px auto;
}
.team ul li{
    float: left;
    padding-right: 30px; 
} 
.team ul li a{
    color: #000;
}
.team ul li img{
    width: 262px;
}
.team ul li span{
    display: block;
    margin-top: 30px;
    text-transform: uppercase;
    font-weight: bolder;
}

.service{
    background-image: url(../img/5.jpg);
    background-repeat: no-repeat;
    background-size: cover;
    position: relative;
}
.service .covers{
    background-color: rgba(0,0,0,.6);
    padding: 80px 0;
}
.service .covers .box h2,
.service .covers .box p span{
    color: #fff;
}
.service .covers .box>span{
    border: 1px solid #fff;
}
.service .box span:nth-child(2){
    font-size: 16px;
}
.service .info ul{
    width: 1170px;
    margin: 0 auto;
    padding: 0 45px;
}
.service .info ul li{
    color: #fff;
    width: 360px;
    height: 200px;
    float: left;
    text-align: center;
    margin-top: 100px;
    cursor: pointer;
}
.service .info ul li img:hover{
    transform: scale(0.65);
    transition: all .8s;
}

.service .info ul li span{
    display: block;
    margin-top: 30px;
    font-weight: bold;
    font-size: 18px;
    text-transform: uppercase;
}

.portfolio{
    padding: 80px 0;
}
.portfolio .box{
    padding-left: 10px;
}
.portfolio .box .items{
    width: 580px;
    border: none;
    margin-bottom: 50px;
}
.portfolio .box .items:hover{
    opacity: 1;
}
.portfolio .box .items span{
    padding: 6px 10px;
    font-weight: bold;
    border: 2px solid transparent;
    margin-right: 10px;
}
.portfolio .box .items span:nth-child(1){
    border: 2px solid #000;
}
.portfolio .box .items span:hover{
    border: 2px solid #000;
}

.portfolio .pic{
    float: left;
    width: 25%;
    position: relative;
    cursor: pointer; 
    overflow: hidden;
    font-size: 0;
}
.portfolio .pic img{
   width: 100%;
   height: 100%; 
   transition: all .4s;   
}
.portfolio .pic:hover img{
    transform: scale(1.5);
}
.portfolio .pic:hover div{
    opacity: 1;
}
.portfolio .pic span:hover{
    color: #000;
    background-color: #fff;
}
.portfolio .pic div{ 
    width: 380px;
    height: 258px;
    background-color: rgba(0,0,0,.6); 
    position: absolute;
    top: 0;
    left: 0;
    text-align: center;
    line-height: 44px;
    opacity: 0;
    transition: all .5s;
}
.portfolio .pic span{
    text-transform: uppercase;
    font-size: 16px;
    font-weight: bold;
    color: #fff;
    display: inline-block;
    width: 176px;
    height: 44px;
    border: 2px solid #fff;
    position: absolute;
    left: 0;
    top: 0;
    right: 0;
    bottom: 0;
    margin: auto;
}

.client{
    /* border: 1px solid red; */
    background-image: url(../img/6.jpg);
    background-repeat: no-repeat;
    background-size: cover;
  
}
.client .covers{
    background-color: rgba(0,0,0,.4);
    padding: 80px 0 160px 0;
}
.client .covers .box h2{
    padding: 80px 0;
}
.client .covers .box img{
    opacity: 0;
    transition: all 2s;
}
.client .covers .box img.active{
    opacity: 1;
}
.client .covers .box h2,
.client .covers .box p span{
    color: #fff;
}
.client .covers .box p span:nth-child(1){
    font-size: 20px;
    font-weight: bold;
}
.client .covers .box p span:nth-child(2){
    font-size: 16px;
}

.behance{}
.behance .box{}
.behance .box img{
    width: 152px;
    height: 152px;
    margin: 80px;
    opacity: 0;
    transition: all 2s;
}
.behance .box img.active{
    opacity: 1;
}

.behance .box span:nth-child(2){
    display: block;
    margin: 0 auto;
}
.behance .box p span:nth-child(2){
    font-size: 16px;
}
.behance .info{
    width: 1140px;
    margin: 0 auto;
}
.behance .info ul{
    float: left;
    margin: 80px 100px;
} 
.behance .info ul h3{
    font-size: 20px;
    text-transform: uppercase;
    padding-bottom: 30px;
}
.behance .info ul li{
    font-size: 14px;
    color: #333;
}
.behance .info ul h3,.behance .info ul li{
    text-align: center;  
    line-height: 20px;
}

.contact{
    width: 100%;
    background-color: #222;
    padding-top: 50px;
}
.contact .container{
    width: 442px;
    margin: 0 auto;
}
.contact .container p{
    color: #fff;
    text-align: center;
    font-size: 13px;
}
.contact .container p a{
    color: #fff;
}
.contact .container div{
    text-align: center;
    padding-bottom: 60px;
    padding-top: 10px;
}
    


.show1{
    animation: ani1 .8s;
}
.show2{
    animation: ani2 2s;
}
.show3{
    animation: ani3 1.2s;
}
.show4{
    animation: ani4 .8s;
}
.show5{
    animation: ani5 .8s;
}


@keyframes ani1{
    0%{
        transform: scale(0.5);
    };
    40%{
        transform: scale(1.2)
    };
    60%{
        transform: scale(0.8)
    };
    100%{
        transform: scale(1);
    }
}
@keyframes ani2{
    from{
        transform: translateX(100px);
        opacity: 0;
    };
    to{
        transform: translateX(0);
        opacity: 1;
    }
}
@keyframes ani3{
    from{
        transform: rotate(-90deg);
        transform-origin: 0% 100%;
        opacity: 0;
    };
    to{
        transform: rotate(0);
        transform-origin: 0% 100%;
        opacity: 1;
    }
}
@keyframes ani4{
    0% {
        transform: perspective(400px) rotateY(90deg);
        opacity: 0;
    }
    40% {
        transform: perspective(400px) rotateY(-10deg);
    }
    70% {
        transform: perspective(400px) rotateY(10deg);
    }
    100% {
        transform: perspective(400px) rotateY(0deg);
        opacity: 1;
    }
}
@keyframes ani5{
    0% {
        transform: perspective(400px) rotateX(-90deg);
        opacity: 0;
    }
    40% {
        transform: perspective(400px) rotateX(-20deg);
    }
    70% {
        transform: perspective(400px) rotateX(20deg);
    }
    100% {
        transform: perspective(400px) rotateX(0deg);
        opacity: 1;
    }
}